Sökning: "total harmonic distortion"

Visar resultat 16 - 20 av 27 uppsatser innehållade orden total harmonic distortion.

  1. 16. Basic design of an HVDC interconnection in Brazil.

    Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

    Författare :Sylvain Bancal; [2016]
    Nyckelord :HVDC; Optimization; Conductor selection; Harmonics; Passive filters; Minimax; HVDC; optimering; ledarval; övertoner; passiva filter; Minimax;

    Sammanfattning : HVDC technologies are very effective on long distance power transmission but generally raise large interrogations as how to determine an effective configuration. This thesis propose part of an optimization process in order to determine an optimal configuration for an HVDC installation, emphasizing in this report the impact of the conductor selection and of the filter design. LÄS MER

  3. 17. Performance Evaluation of Medium-Power Voltage Inverters

    Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System; Linköpings universitet/Tekniska fakulteten

    Författare :Emil Häger; [2015]
    Nyckelord :Inverter; neutral-point clamped; SPWM; switching losses; input ripple; total harmonic distortion;

    Sammanfattning : Power inverters, used to convert DC power to AC, are often used in e.g. solar power applications. However, they tend to be impractically large and expensive; as such, power miniaturization is an active research area. LÄS MER

  4. 18. PFC-design for frequency converter

    Master-uppsats, Linköpings universitet/Fysik och elektroteknik; Linköpings universitet/Tekniska högskolan

    Författare :David Kantzon; [2015]
    Nyckelord :;

    Sammanfattning : This thesis deals with power factor correction for three-phase systems. A boost-buck topology was described, modeled and then simulated in MATLAB/Simulink. The simulation results show that the system provides a power factor over 99% over the tested power output range. LÄS MER

  5. 19. Electric power quality in low voltage grid : Office buildings and rural substation

    Magister-uppsats, Högskolan i Halmstad/Sektionen för ekonomi och teknik (SET)

    Författare :Robin Andersson; [2015]
    Nyckelord :power quality; low voltage; office building; EIFS 2013:1; measurements; reactive power; capacitive power factor; substation;

    Sammanfattning : The modern society uses more and more electronic devices needed to being able to function together. This put higher demands on the electrical grid together with that the typical load have changed from the past. Therefore utility companies are obliged to keep the voltage within certain limits for this to function. LÄS MER

  7. 20. Built-in self-test of analog-to-digital converters in FPGAs

    Master-uppsats, Linköpings universitet/Elektroniksystem

    Författare :Petter Nilsson; [2014]
    Nyckelord :FPGA; BIST; ADC; dynamic test; static test; linearity; DNL; INL; offset; gain error; FFT; SNR; THD; delta-sigma; sigma-delta; DAC; high-level synthesis; HLS; IEEE Standard 1241;

    Sammanfattning : When designing an ADC it is desirable to test its performance at two different points in the development process. The first is characterization and verification testing when a chip containing the ADC has been taped-out for the first time, and the second is production testing when the chip is manufactured in large scale. LÄS MER